Peanut Agglutinin (PNA) is a type of plant lectin derived from the peanut plant, Arachis hypogaea. It has a high affinity for binding to the carbohydrate structure Galactosyl (β-1,3) N-acetylgalactosamine, often abbreviated as Gal-β(1-3)-GalNAc. This specific binding property makes PNA a valuable tool in various histological and biochemical applications.
